Year	% (cumulative)
2004	98.1338195800781
2005	98.1802062988281
2006	97.6298751831055
2007	98.5451431274414
2008	98.3600769042969
2009	98.1266326904297
2010	98.2062835693359
2011	98.250129699707
2012	98.3480911254883
2013	98.1917419433594
2014	98.1581573486328
2015	98.2683334350586
2016	98.3090591430664
2017	97.6949310302734
2018	98.3368988037109
2019	97.5225296020508
2020	98.3582611083984
2021	98.184211730957
2022	98.484016418457